APA-referens (7:e uppl.)

Não informado. Philippine Journal of Surgical Specialties. Philippine College of Surgeons.

Chicago-referens (17:e uppl.)

Não informado. Philippine Journal of Surgical Specialties. Manila: Philippine College of Surgeons.

MLA-referens (8:e uppl.)

Não informado. Philippine Journal of Surgical Specialties. Philippine College of Surgeons.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.